-449 BLACK BUNA 70D O-RING

Part number H70449 is an AS568-449 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 9.975 in (253.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 10.525 in (267.34 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is valued for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material holds up against water, greases and lubricants, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or polar solvents will shorten service life.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and automotive.

Reference part number H70449 when ordering; the item is sold individually. Unit weight is approximately 38.33 g and nominal inside diameter is listed as 10 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.